利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

4 条记录 (耗时 0.011 秒)

    Thermal digital lithographic printing plate
    1.
    发明授权
    Thermal digital lithographic printing plate 有权
    热数码平版印刷版

    公开(公告)号：US06352811B1

    公开(公告)日：2002-03-05

    申请号：US09469490

    申请日：1999-12-22

    申请人： Jayanti Patel ,  Shahhikant Saraiya ,  Celin Savariar-Hauck ,  Jianbing Huang ,  Frederic Mikell ,  Ken-ichi Shimazu ,  Nishith Merchant

    发明人： Jayanti Patel ,  Shahhikant Saraiya ,  Celin Savariar-Hauck ,  Jianbing Huang ,  Frederic Mikell ,  Ken-ichi Shimazu ,  Nishith Merchant

    IPC分类号： G03F709

    CPC分类号： B41C1/1016 ,  B41C2210/02 ,  B41C2210/06 ,  B41C2210/14 ,  B41C2210/22 ,  B41C2210/24 ,  B41C2210/26 ,  B41C2210/262 ,  B41C2210/264 ,  B41C2210/266 ,  B41M5/368 ,  B41M5/42 ,  B41M5/44 ,  B41M5/465

    摘要： A thermal lithographic printing plate, which can be imaged by thermal energy typically by imagewise exposure with an infrared emitting laser, a thermal printing head, etc., is made up of a hydrophilic substrate, and a composite layer structure composed of two layer coatings. Preferably, the first layer of the composite is composed of an aqueous developable polymer mixture containing a solubility inhibiting material and a photothermal conversion material which is contiguous to the hydrophilic substrate. The second layer of the composite is insoluble in the aqueous solution, is ink receptive, and is composed of one or more non-aqueous soluble polymers which are soluble or dispersible in a solvent which does not dissolve the first layer. The plate is exposed with an infrared laser or a thermal print head, and upon aqueous development of the imaged plate, the exposed portions are removed exposing hydrophilic substrate surfaces receptive to conventional aqueous fountain solutions. The unexposed portions contain the ink-receptive image areas. The second layer may also contain a photothermal conversion material. Alternatively, the composite layer may be free of photothermal conversion material when thermal imaging is carried out using a thermal printing head.

    摘要翻译： 可以通过热能成像通过用红外发射激光成像曝光，热打印头等来成像的热平版印刷版由亲水基材和由两层涂层组成的复合层结构构成。 优选地，复合材料的第一层由含有可溶解性抑制材料和与亲水基底邻接的光热转换材料的水性可显影聚合物混合物组成。 复合材料的第二层不溶于水溶液，是油墨接受的，并且由一种或多种可溶于或不溶于不溶于第一层的溶剂中的非水溶性聚合物组成。 该板用红外激光或热打印头曝光，并且在成像板的水性显影时，去除曝光部分，暴露接受常规水性喷泉溶液的亲水底物表面。 未曝光部分包含吸墨图像区域。 第二层也可以含有光热转换材料。 或者，当使用热敏打印头进行热成像时，复合层可以不含光热转换材料。

    NEGATIVE-WORKING IMAGEABLE ELEMENTS AND METHODS OF USE
    3.
    发明申请
    NEGATIVE-WORKING IMAGEABLE ELEMENTS AND METHODS OF USE 失效
    负责任的可图像元素和使用方法

    公开(公告)号：US20080280229A1

    公开(公告)日：2008-11-13

    申请号：US11746816

    申请日：2007-05-10

    申请人： Ting Tao ,  Shashikant Saraiya ,  Eric Clark ,  Frederic Mikell

    发明人： Ting Tao ,  Shashikant Saraiya ,  Eric Clark ,  Frederic Mikell

    IPC分类号： G03C1/73

    CPC分类号： G03F7/033 ,  B41C1/1008 ,  B41C2210/04 ,  B41C2210/06 ,  B41C2210/08 ,  B41C2210/22 ,  B41C2210/24

    摘要： A radiation-sensitive composition includes a radically polymerizable component, initiator composition, a radiation absorbing compound, and a polymeric binder having recurring units that are derived from various ethylenically unsaturated polymerizable monomers provided that at least 40 mol % of the recurring units have a tertiary carbon atom in the backbone and the rest of the recurring units have a secondary or quaternary carbon atom in the backbone. This composition can be used to provide negative-working imageable elements that can be imaged and developed to provide lithographic printing plates that have desired imaging speed and excellent run length without the need for a post-exposure backing step.

    摘要翻译： 辐射敏感组合物包括可自由基聚合的组分，引发剂组合物，辐射吸收化合物和具有衍生自各种烯属不饱和可聚合单体的重复单元的聚合物粘合剂，只要至少40mol％的重复单元具有叔碳原子 骨架中的原子，其余的重复单元在主链中具有仲或季碳原子。 该组合物可用于提供可成像和显影的负性可成像元件，以提供具有期望的成像速度和优异的行程长度的平版印刷版，而不需要后曝光背衬步骤。